Masterclock
GMR
User
Manual
v2
–
2016.12
59
clockIdentity
–
PTP
clock
identity
Number
of
ports
–
GMR1000
devices
have
one
RJ45.
Even
though
GMR5000
devices
have
two
RJ45’s,
they
are
considered
to
be
a
single
logical
PTP
port.
clockQuality.clockClass
–
The
GMR
product
line
can
have
the
following
clock
classes.
Non
‐
GMR
products
may
have
additional
values.
6
–
locked
to
GPS
7
–
previously
locked
to
GPS
13
–
locked
to
time
code,
NTP,
etc.
14
–
previously
locked
to
time
code,
NTP,
etc.
52
–
out
of
holdover
spec.
for
class
7,
degradation
A
58
–
out
of
holdover
spec.
for
class
14,
degradation
A
187
–
out
of
holdover
spec.
for
class
7,
degradation
B
193
–
out
of
holdover
spec.
for
class
14,
degradation
B
248
–
default
if
none
of
the
above
clockQuality.clockAccuracy
–
The
GMR
product
line
can
have
the
following
accuracies.
Non
‐
GMR
products
may
have
additional
values.
32
–
accurate
to
25ns
33
–
accurate
to
100ns
34
–
accurate
to
250ns
35
–
accurate
to
1us
36
–
accurate
to
2.5us
37
–
accurate
to
10us
38
–
accurate
to
25us
39
–
accurate
to
100us
40
–
accurate
to
250us
41
–
accurate
to
1ms
42
–
accurate
to
2.5ms
43
–
accurate
to
10ms
44
–
accurate
to
25ms
45
–
accurate
to
100ms
46
–
accurate
to
250us
47
–
accurate
to
1s
48
–
accurate
to
10s
49
–
accurate
to
>10s
254
–
accuracy
unknown
